Alert archive / Ohio / 2021
Weather alerts in Ohio, May 2021
91 weather alerts in May 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in May 2021. Tap one for its archive.
- Alerts
- 91
- Warnings
- 40
- Watches
- 3
- Advisories
- 31
- Busiest day
- May 9, 202130 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Eastern Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 3:55 AM EDT | Small Craft Advisory | CLE | 30 hr | |
| May 3, 2:47 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Fairfield, Gallia, Guernsey, Hocking and 10 more | 118 min |
| May 4, 7:31 AM EDT | Special Weather Statement | RLX | Morgan | 44 min |
| May 4, 8:28 AM EDT | Special Weather Statement | PBZ | Noble | 32 min |
| May 4, 11:01 AM EDT | Flash Flood Warning | RLX | Washington | 3 hr |
| May 4, 2:35 PM EDT | Flash Flood Watch | RLX | Athens, Meigs, Washington | 17 hr |
| May 5, 4:51 AM EDT | Small Craft Advisory | CLE | 17 hr | |
| May 5, 5:40 AM EDT | River Flood Warning | ILN | Adams | 10 hr |
| May 7, 2:37 PM EDT | Frost Advisory | IWX | Williams | 18 hr |
| May 7, 2:58 PM EDT | Frost Advisory | ILN | Adams, Brown, Butler, Clermont, Clinton, Darke and 5 more | 17 hr |
| May 7, 3:42 PM EDT | Small Craft Advisory | CLE | 18 hr | |
| May 7, 5:16 PM EDT | Special Weather Statement | CLE | Ashland, Huron, Richland | 44 min |
| May 7, 5:19 PM EDT | Special Weather Statement | CLE | Wood | 41 min |
| May 7, 6:08 PM EDT | Special Weather Statement | CLE | Cuyahoga, Lorain, Medina, Summit | 52 min |
| May 7, 9:51 PM EDT | Special Marine Warning | CLE | 84 min | |
| May 7, 10:00 PM EDT | Special Weather Statement | CLE | Erie | 45 min |
| May 8, 12:20 AM EDT | Special Weather Statement | CLE | Cuyahoga | 85 min |
| May 8, 9:35 AM EDT | Small Craft Advisory | CLE | 4 hr | |
| May 8, 9:50 PM EDT | Small Craft Advisory | CLE | 30 hr | |
| May 9, 9:44 AM EDT | Special Weather Statement | ILN | Butler | 31 min |
| May 9, 9:57 AM EDT | River Flood Warning | IWX | Van Wert | 5 days |
| May 9, 9:57 AM EDT | River Flood Warning | IWX | Paulding | 65 hr |
| May 9, 9:57 AM EDT | River Flood Warning | IWX | Allen, Paulding, Putnam | 3 days |
| May 9, 9:57 AM EDT | River Flood Warning | IWX | Putnam | 30 hr |
| May 9, 2:06 PM EDT | Special Weather Statement | CLE | Ashtabula | 84 min |
| May 9, 2:46 PM EDT | Areal Flood Advisory | IWX | Allen, Paulding, Putnam, Van Wert | 3 hr |
| May 9, 2:47 PM EDT | Frost Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 17 hr |
| May 9, 2:53 PM EDT | River Flood Warning | CLE | Holmes, Wayne | 6 days |
| May 9, 2:53 PM EDT | River Flood Warning | CLE | Hancock | 30 hr |
| May 9, 3:10 PM EDT | Frost Advisory | CLE | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 21 more | 15 hr |
| May 9, 3:12 PM EDT | River Flood Advisory | ILN | Delaware, Franklin | 17 hr |
| May 9, 3:23 PM EDT | River Flood Warning | CLE | Lorain | 52 hr |
| May 9, 3:39 PM EDT | Frost Advisory | ILN | Auglaize, Butler, Champaign, Clark, Darke, Delaware and 10 more | 16 hr |
| May 9, 3:51 PM EDT | River Flood Warning | IWX | Defiance, Henry | 3 days |
| May 9, 3:51 PM EDT | River Flood Warning | IWX | Defiance | 65 hr |
| May 9, 3:51 PM EDT | River Flood Warning | IWX | Henry | 3 days |
| May 9, 3:55 PM EDT | Areal Flood Warning | CLE | Ashland, Crawford, Huron, Medina, Richland, Seneca and 1 more | 3 hr |
| May 9, 4:07 PM EDT | River Flood Warning | ILN | Shelby | 11 hr |
| May 9, 5:04 PM EDT | River Flood Warning | CLE | Delaware, Marion | 4 days |
| May 9, 5:04 PM EDT | River Flood Warning | CLE | Erie | 22 hr |
| May 9, 5:04 PM EDT | River Flood Warning | CLE | Marion | 54 hr |
| May 9, 6:20 PM EDT | Areal Flood Warning | CLE | Stark | 3 hr |
| May 9, 6:28 PM EDT | River Flood Warning | CLE | Stark | 17 hr |
| May 9, 6:33 PM EDT | River Flood Warning | ILN | Pickaway | 62 hr |
| May 9, 6:43 PM EDT | Areal Flood Warning | CLE | Ashland, Crawford, Holmes, Huron, Knox, Marion and 4 more | 30 hr |
| May 9, 6:48 PM EDT | Areal Flood Warning | CLE | Stark | 6 hr |
| May 9, 6:54 PM EDT | Areal Flood Warning | CLE | Morrow | 6 hr |
| May 9, 7:14 PM EDT | River Flood Warning | CLE | Trumbull | 38 hr |
| May 9, 8:25 PM EDT | River Flood Warning | ILN | Fairfield, Licking | 7 hr |
| May 9, 9:42 PM EDT | River Flood Warning | CLE | Seneca | 24 hr |
| May 10, 12:45 AM EDT | Areal Flood Warning | CLE | Morrow | 6 hr |
| May 10, 4:00 AM EDT | Areal Flood Warning | CLE | Crawford | 14 hr |
| May 10, 6:53 AM EDT | Areal Flood Advisory | CLE | Stark | 6 hr |
| May 10, 7:15 AM EDT | River Flood Warning | CLE | Hancock | 20 hr |
| May 10, 11:02 AM EDT | River Flood Warning | CLE | Sandusky, Wood | 31 hr |
| May 10, 11:23 AM EDT | River Flood Warning | IWX | Putnam | 64 hr |
| May 10, 12:29 PM EDT | Frost Advisory | CLE | Ashtabula, Hancock, Lucas, Ottawa, Sandusky, Seneca and 1 more | 15 hr |
| May 10, 2:56 PM EDT | Frost Advisory | IWX | Defiance, Fulton, Henry, Paulding, Putnam, Williams | 17 hr |
| May 11, 1:53 AM EDT | Areal Flood Warning | CLE | Wyandot | 17 hr |
| May 11, 3:32 AM EDT | Small Craft Advisory | CLE | 24 hr | |
| May 11, 10:45 AM EDT | River Flood Warning | CLE | Seneca | 44 hr |
| May 11, 11:52 AM EDT | Frost Advisory | PBZ | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 19 hr |
| May 11, 12:12 PM EDT | Frost Advisory | RLX | Athens, Gallia, Jackson, Meigs, Morgan, Perry and 2 more | 21 hr |
| May 11, 12:18 PM EDT | Frost Advisory | CLE | Ashland, Crawford, Hancock, Holmes, Huron, Knox and 16 more | 20 hr |
| May 11, 1:09 PM EDT | Frost Advisory | IWX | Allen, Defiance, Fulton, Henry, Paulding, Putnam and 2 more | 19 hr |
| May 11, 1:15 PM EDT | Frost Advisory | ILN | Auglaize, Brown, Butler, Champaign, Clark, Clermont and 24 more | 20 hr |
| May 12, 11:40 AM EDT | Frost Advisory | PBZ | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 5 more | 20 hr |
| May 12, 11:56 AM EDT | Frost Advisory | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 21 hr |
| May 12, 2:15 PM EDT | Frost Advisory | CLE | Ashland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more | 17 hr |
| May 12, 3:07 PM EDT | Frost Advisory | ILN | Fairfield, Hocking, Licking | 17 hr |
| May 12, 3:23 PM EDT | Frost Advisory | IWX | Defiance, Fulton, Henry, Paulding, Putnam, Williams | 16 hr |
| May 13, 2:40 PM EDT | Frost Advisory | RLX | Athens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more | 18 hr |
| May 23, 7:18 PM EDT | Special Weather Statement | CLE | Erie | 42 min |
| May 23, 7:20 PM EDT | Special Marine Warning | CLE | 85 min | |
| May 23, 7:41 PM EDT | Special Weather Statement | CLE | Lorain | 49 min |
| May 26, 12:16 PM EDT | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Geauga, Guernsey, Harrison and 6 more | 119 min |
| May 26, 12:59 PM EDT | Severe Thunderstorm Watch | SPC | Belmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 12 more | 7 hr |
| May 26, 1:05 PM EDT | Special Weather Statement | CLE | Portage, Summit | 40 min |
| May 26, 1:14 PM EDT | Severe Thunderstorm Warning | CLE | Portage, Stark, Summit | 49 min |
| May 26, 1:57 PM EDT | Special Weather Statement | CLE | Trumbull | 33 min |
| May 26, 3:58 PM EDT | Special Weather Statement | PBZ | Harrison | 32 min |
| May 26, 4:23 PM EDT | Severe Thunderstorm Warning | PBZ | Harrison, Jefferson | 22 min |
| May 26, 10:50 PM EDT | Dense Fog Advisory | ILN | Adams, Auglaize, Brown, Butler, Champaign, Clark and 21 more | 10 hr |
| May 27, 3:46 AM EDT | Gale Watch | CLE | 24 hr | |
| May 27, 3:49 PM EDT | Small Craft Advisory | CLE | 17 hr | |
| May 27, 3:52 PM EDT | Beach Hazards Statement | CLE | Ashtabula, Cuyahoga, Erie, Lake, Lorain, Lucas and 1 more | 60 hr |
| May 28, 3:47 AM EDT | Lakeshore Flood Warning | CLE | Erie, Lucas, Ottawa, Sandusky | 28 hr |
| May 28, 3:49 AM EDT | Gale Warning | CLE | 28 hr | |
| May 28, 2:30 PM EDT | Wind Advisory | CLE | Ashtabula, Cuyahoga, Erie, Lake, Lorain, Lucas and 2 more | 18 hr |
| May 28, 3:56 PM EDT | Areal Flood Warning | RLX | Washington | 2 hr |
| May 29, 7:43 AM EDT | Small Craft Advisory | CLE | 20 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 2 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 14 |
| Flooding | |
| Areal Flood Warning | 9 |
| Flash Flood Warning | 1 |
| River Flood Warning | 24 |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| River Flood Advisory | 1 |
| Cold | |
| Frost Advisory | 18 |
| Wind and dust | |
| Wind Advisory | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
| Coast and beach | |
| Lakeshore Flood Warning | 1 |
| Beach Hazards Statement | 1 |
| Marine | |
| Gale Warning | 1 |
| Special Marine Warning | 2 |
| Gale Watch | 1 |
| Small Craft Advisory | 8 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Stark County10
- Lorain County8
- Erie County8
- Putnam County8
- Seneca County8
- Washington County7
- Summit County7
- Paulding County7
- Lucas County7
- Portage County7
- Sandusky County7
- Trumbull County7
- Ashland County6
- Huron County6
- Richland County6
- Wood County6
- Cuyahoga County6
- Ashtabula County6
- Defiance County6
- Henry County6
- Holmes County6
- Hancock County6
- Crawford County6
- Marion County6
- Morrow County6
- Ottawa County6
- Wyandot County6
- Harrison County6
- Athens County5
- Belmont County5
- Guernsey County5
- Meigs County5
- Morgan County5
- Noble County5
- Williams County5
- Butler County5
- Medina County5
- Wayne County5
- Mahoning County5
- Delaware County5
48 more counties
- Jefferson County5
- Fairfield County4
- Gallia County4
- Jackson County4
- Monroe County4
- Muskingum County4
- Perry County4
- Vinton County4
- Darke County4
- Montgomery County4
- Preble County4
- Van Wert County4
- Allen County4
- Fulton County4
- Knox County4
- Shelby County4
- Licking County4
- Carroll County4
- Columbiana County4
- Tuscarawas County4
- Hocking County3
- Lawrence County3
- Adams County3
- Brown County3
- Clermont County3
- Clinton County3
- Hamilton County3
- Highland County3
- Warren County3
- Geauga County3
- Franklin County3
- Auglaize County3
- Champaign County3
- Clark County3
- Greene County3
- Hardin County3
- Logan County3
- Madison County3
- Mercer County3
- Miami County3
- Union County3
- Coshocton County3
- Lake County3
- Pickaway County2
- Fayette County2
- Pike County1
- Ross County1
- Scioto County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.